St. Andrews Episcopal School

Bildtext:POTOMAC, MD - FEBRUARY 13: Preschool students line up to leave the classroom. At the St. Andrews Episcopal School in Potomac, MD, they use brain research to inform teaching and learning. The school has the only K-12 school center for teaching based on brain research in the country. (Photo by Sarah L. Voisin/The Washington Post via Getty Images)

Bildtext:

POTOMAC, MD - FEBRUARY 13: Preschool students line up to leave the classroom. At the St. Andrews Episcopal School in Potomac, MD, they use brain research to inform teaching and learning. The school has the only K-12 school center for teaching based on brain research in the country. (Photo by Sarah L. Voisin/The Washington Post via Getty Images)

Preschool students line up to leave the classroom At the St Andrews... NyhetsfotoFörskola,Ge sig av,Horisontell,Klassrum,Maryland,Mänskligt intresse,Potomac - Maryland,På rad,Student,USAPhotographer The Washington PostCollection: The Washington Post 2013 The Washington PostPOTOMAC, MD - FEBRUARY 13: Preschool students line up to leave the classroom. At the St. Andrews Episcopal School in Potomac, MD, they use brain research to inform teaching and learning. The school has the only K-12 school center for teaching based on brain research in the country. (Photo by Sarah L. Voisin/The Washington Post via Getty Images)